Antifragmentation plates of polymethylmethacrylate
US5985445A · kind A · utility
1Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1996 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Oct 31, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2907
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Antinoise and antifragmentation plates based on acrylic polymers employing a polymeric continuous film placed inside the plate, wherein the film is characterized by an elastic modulus lower than the one of PMMA of at least 30%, and/or elongtion at break higher than at least 40%, measured by the test according to ISO 527 standard for plates or for films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.